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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Supervisors

Analog Devices Inc./Maxim Integrated DS1233DZ-10

Name: DS1233DZ-10
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1233DZ-10
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DS1233DZ-10

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Supervisors

Package:: TO-261-4, TO-261AA

Datasheet:: DS1233DZ-10.pdf

Description:: IC SUPERVISOR 1 CHANNEL SOT223-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

DS1233DZ-10 from Maxim Integrated (now Analog Devices) is a precision 5V microprocessor supervisory circuit with 10% V_CC trip point (4.25–4.49 V), 350 ms reset pulse width, and internal 5 kΩ pull-up resistor. It monitors power supply integrity, asserts active-low RESET during out-of-tolerance conditions, and supports Motorola 68XXX and HC16 microprocessors in embedded control systems.

For engineers reviewing the DS1233DZ-10 datasheet, DS1233DZ-10 pinout, DS1233DZ-10 application, or DS1233DZ-10 equivalent, key selection criteria include V_CC trip accuracy, guaranteed reset timeout, operating temperature range (–40°C to +85°C), SOT-223 package compatibility, and internal pull-up integration for simplified reset circuit design.

Technical Context

The DS1233DZ-10 implements a precision temperature-compensated voltage reference and comparator to detect V_CC deviations beyond ±10% of nominal 5 V. Its reset output remains asserted for 250–450 ms after V_CC recovery, ensuring stable power and processor initialization before release.

It operates with no external components required for basic functionality: internal 5 kΩ pull-up eliminates need for discrete resistor, and its pushbutton detection capability is disabled (N/A per selection guide), distinguishing it from DS1233 variants with manual reset input.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Trip Point	4.25 V (min) to 4.49 V (max) - ensures reset assertion when 5 V supply drops below 10% tolerance
Reset Pulse Width	250–450 ms - guarantees sufficient stabilization time for microprocessor and power rails post-power-up
Operating Temp	–40°C to +85°C - validated for industrial-grade embedded applications without derating
Internal Pull-Up	3.75–6.25 kΩ - enables direct connection to open-drain reset inputs without external resistor
Supply Voltage Range	1.2 V to 5.5 V - supports operation across brown-out and pre-regulator stages
Output Drive	8 mA sink at 0.4 V - reliably drives standard CMOS/TTL reset inputs under load

Pinout & Package

SOT-223 package (4-pin, surface-mount), thermally enhanced for industrial environments. Pin 4 is dedicated ground for thermal and noise isolation; pins 1 and 3 are shared ground and V_CC, respectively.

Pin/Terminal	Circuit Role	Design Meaning
PIN 1	GROUND	Primary signal ground reference; connects to PCB ground plane for noise immunity
PIN 2	RESET (active-low)	Open-drain output asserting low during power fault or startup; requires external pull-up if not using internal one
PIN 3	V_CC	Power supply input; monitored for 10% undervoltage condition triggering reset
PIN 4	GROUND (thermal pad)	Dedicated thermal ground; must be soldered to large copper area for thermal dissipation and EMI reduction

Key Features

Feature	Design Value
10% V_CC trip accuracy	Guarantees reset activation only within defined 4.25–4.49 V window-prevents false resets near nominal 5 V
350 ms typ. reset timeout	Ensures microprocessor clocks, PLLs, and memory controllers fully stabilize before release
Integrated 5 kΩ pull-up	Reduces BOM count by one resistor and eliminates layout uncertainty in reset net routing
–40°C to +85°C operation	Validated performance across full industrial temperature range without calibration or compensation

Applications

Industrial PLC Controller	Medical Diagnostic Device
Use Scenario: Power interruption during firmware update or sensor calibration sequence. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low RESET to halt CPU execution and prevent corrupted flash writes. Use Value: 350 ms guaranteed reset hold ensures complete power rail stabilization before reinitialization-critical for data integrity in nonvolatile memory operations.	Use Scenario: Battery-backed mainboard operating during AC power transition or backup battery switchover. IC Role / Device Role / Timing Role: Real-time V_CC monitor detecting 10% droop on 5 V rail to trigger controlled shutdown sequence. Use Value: Precision 4.25–4.49 V trip window avoids nuisance resets during transient sags while catching true brown-out events affecting analog front-end accuracy.
Automotive Body Control Module	Point-of-Sale Terminal
Use Scenario: Cold-cranking event causing 5 V supply dip below regulation threshold. IC Role / Device Role / Timing Role: Reset generator holding microcontroller in reset until stabilized 5 V rail is confirmed and maintained for ≥250 ms. Use Value: Internal temperature-compensated reference maintains trip point accuracy across –40°C start-up, eliminating need for external calibration.	Use Scenario: Unplanned AC loss during transaction processing or receipt printing. IC Role / Device Role / Timing Role: Power-fail detector initiating graceful firmware save and EEPROM checkpoint before power collapse. Use Value: Open-drain RESET output with 8 mA sink drive interfaces directly with common microcontroller reset inputs-no level-shifting or buffering required.

Industrial PLC Controller

Medical Diagnostic Device

Use Scenario: Power interruption during firmware update or sensor calibration sequence.

IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low RESET to halt CPU execution and prevent corrupted flash writes.

Use Value: 350 ms guaranteed reset hold ensures complete power rail stabilization before reinitialization-critical for data integrity in nonvolatile memory operations.

Use Scenario: Battery-backed mainboard operating during AC power transition or backup battery switchover.

IC Role / Device Role / Timing Role: Real-time V_CC monitor detecting 10% droop on 5 V rail to trigger controlled shutdown sequence.

Use Value: Precision 4.25–4.49 V trip window avoids nuisance resets during transient sags while catching true brown-out events affecting analog front-end accuracy.

Automotive Body Control Module

Point-of-Sale Terminal

Use Scenario: Cold-cranking event causing 5 V supply dip below regulation threshold.

IC Role / Device Role / Timing Role: Reset generator holding microcontroller in reset until stabilized 5 V rail is confirmed and maintained for ≥250 ms.

Use Value: Internal temperature-compensated reference maintains trip point accuracy across –40°C start-up, eliminating need for external calibration.

Use Scenario: Unplanned AC loss during transaction processing or receipt printing.

IC Role / Device Role / Timing Role: Power-fail detector initiating graceful firmware save and EEPROM checkpoint before power collapse.

Use Value: Open-drain RESET output with 8 mA sink drive interfaces directly with common microcontroller reset inputs-no level-shifting or buffering required.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor supervisory applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX691ACSA+	Includes watchdog timer and manual reset input; higher quiescent current (120 µA vs. 50 µA)	Required where system-level fault recovery (e.g., hung firmware) is needed beyond power monitoring	Select MAX691ACSA+ only if watchdog supervision is mandatory; DS1233DZ-10 offers lower cost and simpler implementation for pure power-reset use cases
TPS3808G12DBVR	Adjustable trip point (via external resistor); no internal pull-up; 200 ms min reset timeout	Suitable for custom voltage rails or designs requiring programmable thresholds	Choose TPS3808G12DBVR when V_CC tolerance must be tuned per design; DS1233DZ-10 provides fixed 10% accuracy with zero external components

Compared with MAX691ACSA+ and TPS3808G12DBVR, the DS1233DZ-10 delivers lowest BOM count and highest integration for fixed 5 V systems-its internal pull-up, guaranteed 350 ms timeout, and factory-trimmed 10% trip eliminate calibration, reduce layout risk, and accelerate time-to-market for cost-sensitive industrial controls.

Availability

DS1233DZ-10 is available at Aetrix Electronics and suitable for industrial PLC controllers, medical diagnostic devices, automotive body control modules, and point-of-sale terminals requiring stable component supply and long-term lifecycle support.

Supply support for DS1233DZ-10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices (including legacy Maxim Integrated products) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors for precision measurement and control.

The DS1233DZ-10 belongs to the EconoReset™ family-designed specifically for cost-sensitive, high-volume embedded systems requiring reliable, single-function power-on reset and brown-out detection without feature bloat.

FAQ

What is the exact V_CC trip voltage range for DS1233DZ-10?

The DS1233DZ-10 has a guaranteed V_CC trip point range of 4.25 V (minimum) to 4.49 V (maximum) at +25°C, corresponding to a ±10% tolerance around nominal 5 V. This specification is validated across the full –40°C to +85°C operating temperature range using Maxim's temperature-compensated voltage reference architecture. The DS1233DZ-10 maintains this accuracy without external calibration components.

Does DS1233DZ-10 require an external pull-up resistor on the RESET pin?

No, the DS1233DZ-10 integrates a factory-trimmed internal pull-up resistor of 3.75–6.25 kΩ, eliminating the need for an external component in standard open-drain reset configurations. This simplifies layout and reduces BOM count. However, if interfacing with a microcontroller requiring stronger pull-up or different logic threshold, an external resistor may still be added-though not required for baseline operation of the DS1233DZ-10.

What is the guaranteed reset timeout duration for DS1233DZ-10?

The DS1233DZ-10 guarantees a reset pulse width of 250 ms (minimum) to 450 ms (maximum) after V_CC returns to within tolerance. The typical value is 350 ms, providing robust margin for power supply and microprocessor stabilization. This timing is internally generated and independent of external capacitors or resistors-ensuring consistent behavior across units and temperature, unlike RC-based reset circuits.

Is DS1233DZ-10 compatible with 3.3 V microcontrollers?

The DS1233DZ-10 is designed for 5 V systems and monitors a 5 V supply with ±10% trip threshold. While its RESET output is open-drain and can interface with 3.3 V logic (with appropriate pull-up to 3.3 V), it does not monitor 3.3 V rails. For 3.3 V applications, consider the DS1233A-10 (2.8–2.97 V trip) or TPS3808G01. The DS1233DZ-10 itself remains a 5 V supervisory device.

What package type is used for DS1233DZ-10?

The DS1233DZ-10 is supplied in the SOT-223 package-a 4-pin, surface-mount outline with an exposed thermal pad (Pin 4). This package provides superior thermal performance over TO-92 and supports automated assembly. Mechanical drawings confirm Pin 1 = GND, Pin 2 = RESET, Pin 3 = V_CC, Pin 4 = GND (thermal pad), and the DS1233DZ-10 is not offered in TO-92 or SOT-23 variants.

DS1233DZ-10 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: EconoReset

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Type:: Simple Reset/Power-On Reset

Number of Voltages Monitored:: 1

Voltage - Threshold:: 4.375V

Output:: Open Drain or Open Collector

Reset:: Active Low

Reset Timeout:: 250ms Minimum

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223-3

DS1233DZ-10 FAQ

1.How can I place an order for DS1233DZ-10 through Aetrix?

Please submit a Request for Quotation (RFQ) for DS1233DZ-10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for DS1233DZ-10 reliable?

The price and inventory of DS1233DZ-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1233DZ-10 is usually 5 days.

3.What payment methods are accepted for DS1233DZ-10?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1233DZ-10 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DS1233DZ-10?

DS1233DZ-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DS1233DZ-10 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for DS1233DZ-10?

For technical support, including DS1233DZ-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1233DZ-10 requirements.

6.How does Aetrix verify that DS1233DZ-10 is sourced from the original manufacturer or authorized distributors?

All DS1233DZ-10 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS1233DZ-10 meets industry standards.

7.What is the process for return or replacement of DS1233DZ-10?

All DS1233DZ-10 units undergo pre-shipment inspection (PSI). If there is an issue with DS1233DZ-10, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The DS1233DZ-10 part is unused and in its original packaging.

Return procedure for DS1233DZ-10:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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